Home / 2,851.02-3,933.54-1,857.74

Finding the Fourth Proportional to 2,851.02, 3,933.54 and 1,857.74

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Solution

The fourth proportional to 2,851.02, 3,933.54 and 1,857.74 is: 2,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.02 : 3,933.54 = 1,857.74 : x
  2. Step 2: Convert to fraction form
    2,851.02/3,933.54 = 1,857.74/x
  3. Step 3: Cross multiply
    2,851.02x = 3,933.54 × 1,857.74
  4. Step 4: Simplify right side
    2,851.02x = 7,307,474.93
  5. Step 5: Solve for x
    x = 7,307,474.93/2,851.02
  6. Step 6: Final answer
    x = 2,563.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.